Nissan Pathfinder. Manual - part 897

PCS-64

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2615 BLOWER RELAY CIRCUIT

B2615 BLOWER RELAY CIRCUIT

DTC Logic

INFOID:0000000009175228

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release brake pedal.

2. Perform self diagnostic result. 
Is DTC B2615 detected?

YES

>> Refer to 

PCS-64, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175229

Regarding Wiring Diagram information, refer to 

PCS-44, "Wiring Diagram"

.

1.

 CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect front blower motor relay.

3. Disconnect BCM connector M19.

4. Check continuity between front blower motor relay connector J-4 and BCM connector M19.

5. Check continuity between front blower motor relay connector J-4 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

 CHECK FRONT BLOWER MOTOR RELAY GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between front blower motor relay connector J-4 and ground.

CONSULT Display

DTC Detection Condition

Possible Cause

BLOWER RELAY CIRCUIT
[B2615]

An immediate operation of front blower motor relay 
is requested by BCM, but there is no response for 
more than 1 second.

• Harness or connectors.
• Front blower motor relay.
• Fuse block J/B.
• BCM.

Front blower motor relay

BCM

Continuity

Connector

Terminal

Connector

Terminal

J-4

2

M19

66

Yes

Front blower motor relay

Ground

Continuity

Connector

Terminal

J-4

2

—

No

Front blower motor relay

Ground

Continuity

Connector

Terminal

J-4

1

—

Yes

PCS

B2615 BLOWER RELAY CIRCUIT

PCS-65

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

 CHECK FRONT BLOWER MOTOR RELAY

Perform the relay component inspection. Refer to 

PCS-65, "Component Inspection (Relay)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace front blower motor relay.

4.

 CHECK FRONT BLOWER MOTOR RELAY POWER SUPPLY (BCM)

Check voltage between BCM connector M19 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

Component Inspection (Relay)

INFOID:0000000009175230

1.

 CHECK RELAY

1. Remove relay.

2. Check the continuity between relay terminals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace relay.

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M19

66

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

Relay terminals

Condition

Continuity

3 and 5

Battery voltage applied to terminal 2 and 
ground to terminal 1.

Yes

Voltage and ground removed.

No

PCS-66

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

B2616 IGNITION RELAY CIRCUIT

B2616 IGNITION RELAY CIRCUIT

DTC Logic

INFOID:0000000009175231

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

 PERFORM SELF DIAGNOSTIC RESULT

1. Turn ignition switch ON under the following conditions, and wait for at least 1 second.

-

CVT selector lever is in the P (park) or N (neutral) position.

-

Release brake pedal 

2. Perform self diagnostic result. 
Is DTC B2616 detected?

YES

>> Refer to 

PCS-66, "Diagnosis Procedure"

.

NO

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175232

Regarding Wiring Diagram information, refer to 

PCS-44, "Wiring Diagram"

.

1.

 CHECK IGNITION RELAY-2 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM connector M19.

3. Check continuity between ignition relay-2 connector J-1 and BCM connector M19.

4. Check continuity between ignition relay-2 connector J-1 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

 CHECK IGNITION RELAY-2 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between ignition relay-2 connector J-1 and ground.

Is the inspection result normal?

CONSULT Display

DTC Detection Condition

Possible Cause

IGNITION RELAY CIRCUIT
[B2616]

An immediate operation of ignition relay-2 is re-
quested by BCM, but there is no response for more 
than 1 second.

• Harness or connectors.
• Ignition relay-2.
• Fuse block J/B.
• BCM.

Ignition relay-2

BCM

Continuity

Connector

Terminal

Connector

Terminal

J-1

1

M19

67

Yes

Ignition relay-2

Ground

Continuity

Connector

Terminal

J-1

1

—

No

Ignition relay-2

Ground

Continuity

Connector

Terminal

J-1

2

—

Yes

PCS

B2616 IGNITION RELAY CIRCUIT

PCS-67

< DTC/CIRCUIT DIAGNOSIS >

[POWER DISTRIBUTION SYSTEM]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

 CHECK IGNITION RELAY-2

Perform the relay component inspection. Refer to 

PCS-67, "Component Inspection (Relay)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace ignition relay-2.

4.

 CHECK IGNITION RELAY-2 POWER SUPPLY (BCM)

Check voltage between BCM connector M19 and ground.

Is the inspection result normal?

YES

>> Refer to 

GI-49, "Intermittent Incident"

.

NO

>> Replace BCM. Refer to 

BCS-80, "Removal and Installation"

.

Component Inspection (Relay)

INFOID:0000000009175233

1.

 CHECK RELAY

1. Remove relay.

2. Check the continuity between relay terminals under the following conditions.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace relay.

BCM

Ground

Condition

Voltage

(Approx.)

Connector

Terminal

M19

67

—

Ignition: OFF

0V

Ignition: ON

Battery voltage

Relay terminals

Condition

Continuity

3 and 5

Battery voltage applied to terminal 1 and 
ground to terminal 2.

Yes

Voltage and ground removed.

No